Coolant-fuel mechanism and method



N. M. JONES COOLANT-FUEL MECHANISM AND METHOD Oct. 6, 1942.

Filed July '24. 1942 the apparatus according to the invention, and

jacket I] and atits' lower end has a terminal a extending through the jacket II to the exterior. of the engine. From branch or terminal 23,'a

Patented Oct. 6, 1 942 "cooLA 'r-FUEL MECHANISM AND ME'rhon Nelson M. Jones, Sarasota, Fla, assignor to Green; Fuel, lncorpo corporation of Florida rated, Sarasota, Fla., a

Application my 24, 1942, Serial No. 452,223

3 claims;

invention relates to amount and methodwhereby a portion of vaporized fuel serving as a coolant in the cooling system of an internal combustio'n engine may. be condensed and returned to the fuel storage tank or source in order to effect additional cooling.

I also aim to provide means to draw oir coolant vapor from systems" such as are disclosed in my patents #2334300 and #2244523 and recycling same through a compressor and condenser back to the same to increase the cooling effect. I

The more specific objects and advantages will become apparent from a consideration, of the description following taken. in connection with accompanyingdrawing illustrating an operative embodiment.

In said drawing;

Figure 1 is a view diagrammatically showing Figure 2 is a vertical sectional view through the mixing valve.

Referring specifically to the drawing wherein like reference characters designate like or corresponding parts, l designates a fuel tank adapted to contain liquid petroleum gases such as propane, butane orany equivalent which produces a refrigerating effect when passing from the liquid to the gaseous state. The fuel or liquid petroleum gas passes from the tank lll through a supply pipe ll containing a standard or other refrigeration expansion'valve I2 which may be of the vapor expansion type or of theflooded cooling type as preferred. By way of example, a one cylinder internal combustion enfor water or other cooling agent. ,Inlet'andex- I haust val es are shown, respectively, at l8.and is, at to als of theinlet" manifold d exhaust manifold 2|, respectively.

said pipe ll past the expansion valve l2 communicates with a coil 22 located in-the water short pipe leads to a conventional mixing valve structure which is in communication with the intake manifold 20. A valve 26 in the mixer 25 is operable tocontr'ol the amount of vapor entering the mixing valve and a valve 21 The structure described may be that disclosed in Letters Patent issued to me a l-"2,234,900 and #2,244,623 or the equivalent. As the structure operates, it will be realizedthat the fuel in liquid form passes from tank [0 through pipe li and by reason of the expansion valve I2 is converted into a gas as'it enters the coil 22 and in gaseous form passes through conduit 23 and conduit or pipe 24, entering the Valve 25 and admixing with air therein, and as a carbureted mixture passing through manifold 20 into the engine for firing to actuate the piston I4.

A portion of the gas from pipe 23 also passes through pipe 29 to a conventional compressor unit 30 of the type used in refrigeration and fromthe unit 30, the gas passes through a condenser coil 3| and from the latter through a pipe or conduit 32 back to the supply tank In.

It will be realized that the cooling effect of the fuel as it passes from the liquid to the gaseous state, serves to cool the engine an particularly, the water in the space or jacket I and the portion of the gas which iscompressed at 30 and then condensed at 3| and returned to the tank In, serves to increase the refrigerating effect.

Various changes may be resorted to provided 1 spirit and scope of the into drive the engine, returning a portion of thegas before admixture withair through a compressor and condenser back, to the sourceof pp y.

2. A method consisting in cooling an internal combustion engine by expansion of liquid fuel into a gas, using a portion of the gas an internal combustion engine, a jacket about the same and having-a mixing valve to'supply carbureted air to the engine, means to expand located ina branch 28 communicating with the atmosphere, controls the supply of air admitted liquid fuel into a gas and pass the same through said jacket and a portion thereof to said valve, and means through which a portion of said gas passes in communication with the source of supe ply and including a compressor and condenser.

unison M. JONES.

in adm'ix ture with air for ignition to drive the-engine, 

